32.1: Stereoscopic TFT‐LCD with Wire Grid Polarizer and Retarder

Oh, Jae Hwan; Park, Won Hoon; Oh, Beom Seok; Kang, Da Hyun; Kim, Hyojoon; Hong, Soo Min; Hur, Ji Ho; Jang, Jin; Lee, Sung Jung; Kim, Min Jung; Lee, Kyo Hyeon; Park, Kwang Hoon

doi:10.1889/1.3069694

Cited by 8 publications

(8 citation statements)

References 4 publications

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“…I N RECENT years, the 3D display TV market has rapidly grown and the technology for more convenient 3D display has been developed [1]- [4]. However, the implementation of the present 3D display technology is not perfect.…”

Section: Introductionmentioning

confidence: 99%

“…The basic principle of realizing 3D displays, which is called the stereoscopic method [1], makes two slightly different viewing images which are perceived by the brain as one 3D image. There are two representative methods to make the different images.…”

Section: Introductionmentioning

confidence: 99%

“…There are two representative methods to make the different images. One method is to make two images that are spatially separated using a film-type patterned retarder (FPR) [1]- [3]. The other method is to make two images that are separated with time by using a shutter glass [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

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A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

Kim

Chae²,

Jo³

et al. 2014

J. Display Technol.

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This paper presents a new 2D-3D switchable driving method for a 3D thin-film transistor liquid crystal display (TFT-LCD) TV. The proposed driving method, which uses a film-type patterned retarder (FPR), can reduce unnecessary power consumption while displaying 2D images. The proposed driving method can change a part of a pixel according to the driving mode; the part is operated as a black matrix in a 3D display mode, whereas in a 2D display mode, the part is operated as a normal pixel. To realize the proposed driving method without increasing the data signal rates, the number of gate driver integrated circuits (ICs), and the bezel size of the panel, a novel pixel structure and an integrated a-Si:H gate driver, which can be implemented in a small size, are developed. The power consumption of the proposed driving method measured at the full white gray level is 67 W in a 47-in full-high-definition (FHD) TFT-LCD TV. This result shows that the power consumption of the proposed driving method decreases by 28% compared with that of the conventional driving method in the 2D display mode.Index Terms-2D-3D switchable driving, 3D TV, film-type patterned retarder (FPR), integrated a-Si:H gate driver, power consumption.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

Kim

Chae²,

Jo³

et al. 2014

J. Display Technol.

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“…Many researchers have made various efforts to develop 3D displays with twodimensional ͑2D͒/3D switching, high brightness, and high resolution. [1][2][3][4][5][6][7][8][9] Among these technologies, the stereoscopic 3D display using 3D glasses has attracted industrial attention because it has neither the loss of spatial resolution nor the 3D moiré effect between pixels and barrier. Moreover, the stereoscopic 3D technology is suitable for realizing 2D/3D switching easily.…”

mentioning

confidence: 99%

“…Moreover, the stereoscopic 3D technology is suitable for realizing 2D/3D switching easily. The glass-type 3D displays are divided into passive retarder type using patterned retarder film 5 and active retarder type using either liquid crystal ͑LC͒ shutter glasses 6,7 or polarization switching ͑PS͒ panels. 8,9 However, active retarder type with LC shutter glasses has poor brightness in the 3D mode because of the slow response time and writing speed of the LC panel and shutter glasses.…”

mentioning

confidence: 99%

Fast polarization switching panel with high brightness and contrast ratio for three-dimensional display

Shin

Lee

Kim

et al. 2011

Applied Physics Letters

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We propose a polarization switching device using optically compensated pi cell for polarization-glass-type three-dimensional display. This device shows good optical properties such as high transmittance and low cross-talk ratio because of its fast dynamic response characteristics. To improve the brightness and contrast ratio on the right-and left-hand sides, we attach optical retardation films on each side of the polarization glasses instead of attaching the films on the polarization switching panel. From the calculation and experiment, we obtain high contrast ratios, over 200:1, on both sides and a high brightness using only one film on each side. © 2011 American Institute of Physics. ͓doi:10.1063/1.3548863͔The flat-panel display technology has developed very fast in the past decade. Hence, this technology is attaining maturity and the market is approaching saturation. On the contrary, the market for three-dimensional ͑3D͒ display has been rapidly expanding worldwide. Many researchers have made various efforts to develop 3D displays with twodimensional ͑2D͒/3D switching, high brightness, and high resolution.1-9 Among these technologies, the stereoscopic 3D display using 3D glasses has attracted industrial attention because it has neither the loss of spatial resolution nor the 3D moiré effect between pixels and barrier. Moreover, the stereoscopic 3D technology is suitable for realizing 2D/3D switching easily. The glass-type 3D displays are divided into passive retarder type using patterned retarder film 5 and active retarder type using either liquid crystal ͑LC͒ shutter glasses 6,7 or polarization switching ͑PS͒ panels. 8,9 However, active retarder type with LC shutter glasses has poor brightness in the 3D mode because of the slow response time and writing speed of the LC panel and shutter glasses. Moreover, the shutter glass is too heavy and uncomfortable due to the presence of batteries, for an active operation. A 3D display with PS panel ͑3D-PS͒ uses polarization glasses that are lighter and more comfortable than LC shutter glasses, because they do not need batteries for operation. However, it also has drawbacks such as low brightness and 3D cross-talk because of slow response time of the PS panel.8 Moreover, without optical compensation, this device has low and asymmetric contrast ratio ͑CR͒. To overcome these limits, we suggested a 3D-PS using dual-frequency LC and two half-waveplate ͑HWP͒ films.9 However, it still has problems such as decrease in brightness due to the two HWPs, low CR under 200:1, and low cell gap under 3 m. Hence, it is difficult to commercialize this technology.In this letter, we propose a stereoscopic 3D display with a PS panel of high brightness and CR. The PS panel is a pi cell with very fast response time. To obtain high brightness and CR in the left-and right-hand sides simultaneously, we suggest a structure with optical compensation using one film on each side. We have measured the properties of the proposed cell, such as its electro-optical ͑EO͒ and dynamic response characteristic...

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Stereoscopic Displays

2011

3D Displays

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32.1: Stereoscopic TFT‐LCD with Wire Grid Polarizer and Retarder

Cited by 8 publications

References 4 publications

A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

Fast polarization switching panel with high brightness and contrast ratio for three-dimensional display

Stereoscopic Displays

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